If the symptoms of chest tightness and shortness of breath appear after eating, we should be alert to the presence of such diseases as myocardial ischemia. Because when eating, human blood will be redistributed and a lot of blood will go to the gastrointestinal tract to digest food, at this time if the patient’s cardiovascular system is narrowed, there is insufficient blood supply, such as itself has coronary heart disease, has coronary artery stenosis, blood due to redistribution to the stomach, digestive system, the blood in the heart will be relatively reduced, plus itself has coronary artery stenosis, it will make Myocardial ischemia is further aggravated, and the symptoms of chest tightness and shortness of breath will appear. If a patient has chest tightness and shortness of breath after eating, he or she must go to the hospital for timely consultation to clarify whether the coronary artery stenosis is more serious, and if this is the case, he or she should actively seek treatment.